A previously healthy Chinese male returned from Equatorial Guinea

A previously healthy Chinese male returned from Equatorial Guinea presenting with migratory masses. He was diagnosed with loiasis following detection of Loa loa by nested polymerase chain reaction using DNA extracted from tissue. Loiasis is an infection caused by the nematode Loa loa, which belongs to the Filariodea family. Because of global movement of travelers and workers, this disease may be occasionally encountered in regions where

it is not endemic and may be misdiagnosed. Here, we report a case of loiasis in a Chinese patient that was diagnosed by a nested polymerase chain reaction (PCR) using DNA extracted from soft tissue biopsy as template. A 35-year-old male patient was admitted to West China hospital with migratory masses present near

his wrists Adriamycin cell line and ankles for more than 8 weeks and feeling movement GSK-3 phosphorylation of a worm in his right eye for 3 days. Physical examination on admission revealed only slight swelling of his right wrist although skin color was normal. In the following days, the swelling mass migrated to a location nearby. The “moving worm” in his right eye could not be observed by the naked eye, and ultrasonography was performed, revealing spots of low density in the vitreous body. Blood tests revealed anti-hepatitis C virus antibodies, a slightly increased lactate dehydrogenase level (558, reference range 110–220 IU/L), and eosinophilia [white blood cell (WBC) count, 19.75 × 109 L−1; eosinophil cells, 70.0%; and lymphocytes, 12%]. Hepatitis C viral load was 1.0 × 103 copy/mL. Serological tests by ELISA were positive for tuclazepam IgG-type antibodies for Echinococcus spp., Taenia solium, Angiostrongylus

cantonensis, Trichinella spiralis, Clonorchis sinensis, and Schistosoma japonicum. Neither parasite ova nor larvae were visible on examination of stool. No microfilariae were detected in the peripheral blood by microscopic examination of thick blood films collected during the day or at midnight. As these results were unable to provide a final diagnosis and the right calf became swollen 8 days after hospitalization, ultrasonography of the right calf was therefore conducted, which revealed a pipeline-shaped lesion (Figure 1). No worms were found on surgical excision and examination of this mass. Histopathological examination of the calf biopsy specimen, the surrounding skin, and subcutaneous tissue revealed only chronic inflammatory cell infiltration, mainly consisting of eosinophils. The patient had been working in Equatorial Guinea for 13 months before returning to China 4 months prior to this presentation. Onchocerca volvulus and L loa infections are known to be endemic in Equatorial Guinea and loiasis was therefore suspected. No microfilariae were detected, and treatment with diethylcarbamazine (DEC) was initiated with a dosage regime of 50 mg on the first day, 50 mg three times on the second day, 100 mg three times on the third day, and followed by 150 mg three times daily for 18 days.

Patients preferred shorter waiting times,[40] high satisfaction w

Patients preferred shorter waiting times,[40] high satisfaction with pharmacy ratings, quality certificates and extended opening hours.[37] A study by Wellman and Vidican,[39] piloting the addition of medication management services in prescription benefit insurance models, demonstrated that respondents placed the greatest value on pharmacist provision of comprehensive medication management services. Several of the studies also indicated the existence of ‘status-quo’ bias (i.e. tendency to prefer their current service) among patients with respect to

pharmacy choices.[35-37] Four studies examined pharmacist preferences, of which only three elicited preferences with respect to pharmacy services,[41-43] while one was related to preferences for a specific new technology.[44] Grindrod et al.[42] investigated pharmacist preferences for specialised service provision and showed find more that pharmacists preferred to provide medication and disease-management services but did not have significant preferences for screening services. This was contrary to Scott et al.[43] who investigated pharmacist preferences for extended roles in primary care. Significant predictors of pharmacists’ job choices included having an extended pharmacy team, integration with primary and secondary care as well as higher income whereas provision of chronic disease

management and health promotion services was not preferred. Using the latent class model, one study[42] showed the existence of preference heterogeneity in pharmacists’ preferences selleck chemicals with pharmacists falling into three classes, indicating that groups of pharmacists may have different preferences with respect to specialised services provision. Pharmacist preferences were mainly investigated for process-related aspects such as duration of service, type or level of service provision, setting and integration with primary/secondary care and professional service/job-related aspects including job satisfaction, educational requirements and personal income. In the majority of the

studies eliciting Lck preferences for the delivery of specialised pharmacy services (medication or disease management), income was an important attribute, with pharmacists preferring higher incomes.[41-43] Only two studies investigated preferences of both patients and providers for haemophilia therapy.[45, 46] These were also the only studies that included health-outcome related attributes in addition to process-related outcomes. While patients and providers showed substantial consensus for some attributes (e.g. cost), preferences for other attributes were quite different. Patients were more focused on process-related attributes as compared to providers. The relatively few pharmacy DCE studies make it hard to make definitive conclusions about pharmacy services from both the provider and recipient viewpoints. However, a few findings may be highlighted.

The absorbance of the supernatants at 595 nm was estimated using

The absorbance of the supernatants at 595 nm was estimated using a Cary50 spectrophotometer. Results for the heat-treated samples were expressed as percentage of the value for the untreated samples. Dichelobacter Inhibitor Library ic50 nodosus strains were subcultured onto

TAS agar plates (1.5% tryptone, 0.5% protease peptone, 0.2% yeast extract, 0.5% Lab-Lemco powder, 0.5%l-arginine, 0.15%dl-serine, 0.2% MgSO4·7H2O and 1.5% agar), incubated under anaerobic conditions for 4 days and then used to stab-inoculate fresh TAS agar plates that were incubated for a further 4 days (Kennan et al., 2001). Brilliant blue-R dye (0.25% w/v brilliant blue-R, 40% v/v methanol and 7% v/v acetic acid) was then layered over the TAS agar plates, incubated for 30 min and then treated with destaining solution (10% acetic acid, 40% methanol, 50% water) until the blue background disappeared. The diameter of the colony was measured. Student’s unpaired t-test was used to determine whether differences between assays were significant. Based on similarity to other PNPases, the predicted D. nodosus PNPase has two copies of the RNAse PH domain separated by an all-α-helical core PNPase

domain, which are followed by an RNAse KH domain and an RNAse S1 domain (Fig. 1). Two suicide plasmids were constructed (Fig. 1) to interrupt the PNPase-coding find more region after codon 297 (pCF7), which would remove the last four domains, or codon 572 (pCF5), which would remove the S1 domain. The D. nodosus strains A198 and C305 are widely used as reference virulent and benign strains, respectively. Some D. nodosus strains are naturally competent, but all previous attempts to transform strains A198 and C305 have failed (Kennan et al., 1998). The transformation efficiency is very low and varies between D. nodosus strains (Kennan et al., 1998). For these experiments, the virulent strains A198, UNE61 and UNE64 (VCS1703A; Kennan et al., 1998) and the benign strains C305, 819, 1493 and 2483 were used. All of these virulent PRKACG strains have the intA element next to pnpA, while the benign strains have either the intB or the intD element at this position. Transformation

of these strains was attempted using pCF7, designed to truncate PNPase after amino acid 297, which would disrupt four of the five conserved domains (Fig. 1). However, despite many attempts, no transformants with disrupted pnpA genes were obtained, suggesting that a complete lack of PNPase activity is lethal. This was unexpected, because the PNPase gene has been knocked out in E. coli without affecting viability (Donovan & Kushner, 1986). However, the D. nodosus genome is very small (1.3 Mb; Myers et al., 2007) compared with E. coli and so there may be less redundancy in the RNA processing machinery. Similar transformation experiments with pCF5, designed to truncate PNPase after amino acid 572, were carried out with all strains. Tetracycline-resistant colonies were obtained using virulent strains UNE61 and UNE64, and benign strains 819, 1493 and 2483.

The additional difficulty of obtaining a timely viral

loa

The additional difficulty of obtaining a timely viral

load assay makes monitoring the response to antiretroviral therapy difficult. Regular CD4 cell count monitoring is therefore very helpful to identify individuals with rapid progression. It is also important to note that treatment response may be poorer in those with HIV-2 infection, with significantly lower viral load drops reported when compared with HIV-1-infected patients with similar baseline characteristics [34]. The genome of HIV-2 is very variable and there is a possibility BYL719 in vitro of under-quantification with the viral load assays; thus this response may be poorer still. Regardless of whether HIV-2 RNA is detectable or not, blood should be sent to a specialist HIV-2 viral load testing laboratory for quantification in an alternative assay in all patients where there is a low CD4 cell count. Viral load testing in the United Kingdom is performed at the following centres: Prof. Deenan Pillay/Dr Bridget Ferns Department of Virology Royal Free & University College London Medical School Windeyer Building 46 Cleveland St London W1T 4JF Tel: 0207 6799490/9483 Fax: 0207 5805896 E-mail: d.pillay@ucl.ac.uk Dr Duncan Clark/Dr Wnt mutation David Bibby Department of Virology Barts and The London NHS Trust Pathology and Pharmacy Building 80 Newark St London E1 2ES Tel: 02032460358 Fax: 02032460325 E-mail: duncan.clark@bartsandthelondon.nhs.uk

The UK HIV-2 reference laboratory is based new at the HPA in Colindale and is led by: Dr Jennifer Tosswill Health Protection Agency Sexually Transmitted and Blood Borne Virus Laboratory 61 Colindale Avenue London NW9 5HT Tel: 020 8327 6274 E-mail: jennifer.tosswill@hpa.org.uk HIV-2 genotyping can be performed by: Dr Erasmus Smit Consultant Virologist West Midlands Public Health Laboratory Health Protection Agency Birmingham Heartlands Hospital Bordesley Green East Birmingham B9 5SS Tel: 0121 424 1239 Fax: 0121 772 6229 E-mail: erasmus.smit@heartofengland.nhs.uk The laboratories should be contacted in advance of sending specimens to discuss appropriate

samples and the conditions for transporting them. In individuals with undetectable HIV-2 RNA, CD4 cell count may be the only method to identify whether an individual with HIV-2 infection needs treatment and whether that treatment regimen is effective. When detectable, the CD4 cell count decline correlates with HIV-2 RNA viral load and therefore, because of the undetectable or low viral load observed in HIV-2-infected patients, CD4 cell counts can remain stable for many years. However, CD4 cell counts can decline rapidly in those with a high viral load, the rate of decline being the same as in HIV-1-infected patients at comparable viral loads. High CD4 percentage is significantly associated with survival [20].

, 2004) Disruption of collybistin in mice leads to increased lev

, 2004). Disruption of collybistin in mice leads to increased levels of anxiety and impaired spatial learning, which are associated with a selective loss of GABAARs in the hippocampus and basolateral amygdala (Papadopoulos et al., 2007). In humans, a missense mutation in the collybistin SH3 domain results in somatic and dendritic trapping of gephyrin and inhibitory Selleckchem Pritelivir receptors by collybistin aggregates, giving rise to a hyperekplexia, drug-resistant seizures and premature death (Harvey et al., 2004). Collybistin that has been activated by NL2 associates with the

postsynaptic plasma membrane and promotes the subsynaptic clustering of gephyrin. This has led to the conclusion that complexes of NL2, collybistin and gephyrin are sufficient to generate the clustering of postsynaptic GABAARs, even in the absence of a presynaptic terminal (Poulopoulos et al., 2009). Whether, or for how long, such a structure would be stable remains to be determined. It has also been proposed that the interplay between neurexins and neuroligins is modified to maintain the balance between the excitation and inhibition that a neurone receives. Shifts in the location of NL1 and NL2 to excitatory synapses are associated with overexpression of PSD-95 and an increase in the ratio of excitatory

to inhibitory synaptic Olaparib solubility dmso currents; a decrease in this ratio follows knock-down of PSD-95 (Prange et al., 2004; Levinson et al., 2005; Levinson & El Husseini, 2005, for review). There are many other cell adhesion molecules, some of which are found in the synaptic cleft. Some of these are selectively expressed at glutamatergic synapses, e.g. SynCAM (synaptic cell adhesion molecules), ephrins (ligands of class V-EPH-related – receptor

protein-tyrosine kinases), ephrin receptors and netrin-G ligands (transmembrane protein Org 27569 ligands of secreted proteins that act as long-range cues for growth cones). Others, such as NCAM (neural cell adhesion molecule), localise to GABAergic synapses and promote their formation and/or stabilisation (Pillai-Nair et al., 2005). Postsynaptically derived dystroglycan accumulates at a subset of mature GABAergic synapses, but only after the formation and aggregation of presynaptic vesicles and the clustering of postsynaptic GABAARs, particularly of α2-subunit-containing GABAARs (Lévi et al., 2002). β-Dystroglycan is a binding partner for S-SCAM (synaptic scaffolding molecule) at inhibitory synapses, forming a tripartite complex with NL2 in vitro, with S-SCAM acting as a link between NL2 and β-dystroglycan (Sumita et al., 2007). α-Neurexins also bind dystroglycan, but only via LNS2 and LNS6 domains that lack splice inserts (Sugita et al., 2001). Craig & Kang (2007) suggest that cell adhesion molecules may initiate interactions between putative pre- and postsynaptic elements and that neurexin–neuroligin interactions then recruit and stabilise other pre- and postsynaptic structures.

We found evidence of an interaction between diet-induced

We found evidence of an interaction between diet-induced

obesity and CB1 signalling in the regulation of cell proliferation. AM251 reduced caloric intake and body weight in obese rats, as well as corrected plasma levels of cholesterol and triglycerides. AM251 is shown, for the first time, to modulate Selleckchem FK506 cell proliferation in HFD-obese rats only. We observed an increase in the number of 5-bromo-2-deoxyuridine-labelled (BrdU+) cells in the SGZ, but a decrease in the number of BrdU+ cells in the SVZ and the hypothalamus of AM251-treated HFD rats. These BrdU+ cells expressed the neuron-specific βIII-tubulin. These results suggest that obesity may impact cell proliferation in the brain selectively, and provide support for a role of CB1 signalling regulation of neurogenesis in response to obesity. “
“Logographic symbols are visually complex, and thus children’s abilities for visual short-term memory (VSTM) predict their reading competence in logographic systems. In the present study, we investigated the importance of VSTM in logographic reading in adults, both behaviorally

and by means of fMRI. Outside the scanner, VSTM predicted logographic Kanji reading in native Japanese adults (n = 45), a finding consistent with previous observations in Japanese children. In the scanner, participants ABC294640 order (n = 15) were asked to perform a visual one-back task. For this fMRI experiment, we took advantage of the unique linguistic characteristic of the Japanese writing system, whereby syllabic Kana and logographic Kanji can share the same sound and meaning, but differ only in the complexity of their visual features. Kanji elicited greater activation than Kana in the cerebellum and two regions associated with VSTM, the lateral occipital complex and the superior intraparietal Carnitine dehydrogenase sulcus, bilaterally. The same regions elicited the highest activation during the control condition (an unfamiliar,

unpronounceable script to the participants), presumably due to the increased VSTM demands for processing the control script. In addition, individual differences in VSTM performance (outside the scanner) significantly predicted blood oxygen level-dependent signal changes in the identified VSTM regions, during the Kanji and control conditions, but not during the Kana condition. VSTM appears to play an important role in reading logographic words, even in skilled adults, as evidenced at the behavioral and neural level, most likely due to the increased VSTM/visual attention demands necessary for processing complex visual features inherent in logographic symbols.

Thus, coordinate transformation for visually guided eye and/or ha

Thus, coordinate transformation for visually guided eye and/or hand movement during reaching could emerge in the operations of the parietofrontal segment of the network, while the frontoparietal connections, by providing information about the sensory consequences of motor plans, might contribute to the composition of forward models

of movement. In conclusion, the functional architecture of the selleck products parietofrontal network as described in monkey studies, and its similarity with that of man derived from fMRI and tractography analysis, provides a reasonable background to attempt an explanation of some of the disorders of parietal patients from a neurophysiological perspective. Among the cognitive–motor disorders of parietal patients we will consider optic ataxia, directional hypokinesia and constructional apraxia. Optic ataxia is mostly observed after lesions of the SPL and adjacent areas of the IPS (Perenin & Vighetto, 1988), including the parieto-occipital junction (Karnath & Perenin, 2005). The hallmark of optic ataxia is misreaching, i.e. errors of hand movement end-point occurring mostly in the peripheral visual field, but also in central vision when reaches

are made in the absence of visual feedback (for reviews see Battaglia-Mayer & Caminiti, 2002;

Rossetti Selleck Veliparib et al., 2003; Battaglia-Mayer et al., 2006a). More recently, slowness of both arrest and directional corrections of hand movement (Pisella et al., 2000), as well as the inability to smoothly update hand movement trajectory (Gréa et al., 2002), have been reported in a case of an optic ataxia patient, when a sudden jump of Thymidylate synthase target location in space occurs. Under these conditions, patients make two distinct movements, one to the first and the other to the second target’s location, whereas normal subjects smoothly correct hand trajectory in-flight. In normal subjects reversible inactivation of PPC through transcranial magnetic stimulation affects the accuracy of hand movement trajectory (Desmurget et al., 1999; Johnson & Haggard, 2005) and prevents adaptation to new dynamics when the movement is made in a velocity-dependent force field (Della-Maggiore et al., 2004). In essence, the main feature of optic ataxia seems to be a disordered composition and control of directional hand movements to visual targets, although an impaired use of proprioceptive information has also been reported (Blangero et al., 2007) in these patients. Based on a case report (Pisella et al., 2000; Gréa et al., 2002) it has been claimed (Rossetti et al.

The efficacies of these regimens have not been fully evaluated in

The efficacies of these regimens have not been fully evaluated in prospective trials in HIV-positive subjects and we recommend 12 months of rifampicin and ethambutol with pyrazinamide also given in the first 2 months (2REZ/10RE).

If INH resistance is only discovered at 2 months of initial four-drug treatment then one can either continue with rifampicin and ethambutol for 10 months or continue rifampicin, ethambutol and pyrazinamide for a total of 6 months. In patients Selleck Metformin with extensive disease, one might continue both ethambutol and pyrazinamide with rifampicin for 9–12 months or even use rifampicin and ethambutol with a quinolone. TB resistance to at least isoniazid and rifampicin is known as MDR-TB and isolates are at high risk of further acquired drug resistance. Risk factors for MDR-TB include: previous TB treatment; All such patients should be referred to regional treatment centres, regardless of HIV infection status. There is a web-based discussion forum that

can be used by the physician managing such cases. Further details are available on the BTS website at http://www.brit-thoracic.org.uk/tuberculosis.aspx Although patients DNA Damage inhibitor with strains resistant to rifampicin alone have a better prognosis than those with MDR-TB, they are also at increased risk of treatment failure and further resistance and should be managed in consultation with an expert. There are no definitive randomized or controlled studies to define the best regimens for MDR-TB. In principle, patients should be given four drugs to which the organism is susceptible. Recommendations are therefore

based on the resistance profile and expert opinion. The optimum duration of treatment of MDR-TB in HIV-infected patients has also not been established, but many patients are treated for at least 18 months to 2 years after cultures revert to negative. The drugs used to treat MDR-TB include the second-line and other drugs that are listed Fludarabine chemical structure in Table 3. There are no formal data regarding interactions between these drugs and antiretrovirals but a review of the subject has been published [117]. Ethionamide has significant interactions because it is metabolized by the CYP450 system, although by which isoenzyme is unknown. There is no guidance about dose adjustment but TDM may be useful. There is a potential for renal toxicity with aminoglycosides and tenofovir but there are few data on drug interactions between antiretrovirals and second-line anti-tuberculous treatment except for clarithromycin. Expert advice should be sought through the expert physicians network (http://www.brit-thoracic.

, 2006) Next, the β-Gal activities from WK074 cells expressing e

, 2006). Next, the β-Gal activities from WK074 cells expressing either

wild-type His-Irr or mutant His-Irr proteins were compared. The β-Gal activities obtained were normalized to those from WK074 harbouring the pBBR vector (100% β-Gal activity, GDC-0068 no repression of mbfA-lacZ) (Fig. 2a). WK074 cells expressing wild-type His-Irr (pHIRR) had 1.99% β-Gal activity (Fig. 2a). A single mutation in His-Irr proteins at H38, D86, H92, H93 or D105 could repress mbfA-lacZ as effectively as wild-type His-Irr (1.39, 1.04, 0.97, 1.29 and 0.94% β-Gal activity, respectively) (Fig. 2a). A single mutation at H45, H65 or H127 in the protein caused a slight defect in the ability of the protein to repress mbfA-lacZ compared with wild-type His-Irr, as indicated by the increase learn more in β-Gal activities (3.83%, 4.77% and 8.96% β-Gal activity, respectively) (Fig. 2a).

The H94 mutation caused the greatest reduction in the repressor function of His-Irr (17.23% β-Gal activity) as compared with the mutations at the other H residues (Fig. 2a). A double mutation at residues H45 and H65 of His-Irr (corresponding to the second haem-binding site of IrrRl) caused a small defect (H45H65, 11% β-Gal activity). Triple mutation in the HHH motif of His-Irr (H92, H93 and H94) caused a large defect in the repressor function of the protein (HHH, 63% β-Gal activity) but did not completely abolish protein function (Fig. 2b). Based on this, it is likely that amino acid residues outside

of the HHH motif also contribute to the repressor function of His-Irr. The plasmids containing the mutated HHH motif in combination with the mutation of other residues, including H38, H45, H65, D86, D105 or H127, were constructed to produce the mutant His-Irr proteins HHH38, HHH45, HHH65, HHH86, HHH105 and HHH127, respectively. Additional mutations at H45, H65 or H127 together with the HHH motif mutation led to the complete loss of His-Irr function (HHH45, HHH65 and HHH127: 103%, 101% and 99% β-Gal activity, SB-3CT respectively) (Fig. 2b). Although the mutant His-Irr proteins HHH38 and HHH105 both showed an additive effect compared to HHH, the mutant proteins did not lose function completely (76% and 85% β-Gal activity, respectively) (Fig. 2b). Unexpectedly, an additional mutation at D86 could fully reverse the defect caused by the HHH mutation (HHH86, 0.87% β-Gal activity) (Fig. 2b). The experiments were repeated using the plasmid pIRR to express wild-type IrrAt that encodes the native protein without the 6× His tag. As previously described, the results from the mutagenesis of His-Irr (Fig. 2) showed that H45, H65, D86, H94, the HHH motif and H127 influence the function of Irr.

For women with a plasma VL of <50 HIV RNA copies/mL at 36 weeks,

For women with a plasma VL of <50 HIV RNA copies/mL at 36 weeks, and in the absence of obstetric contraindications, a planned vaginal delivery is recommended.     SAHA HDAC datasheet For women with a plasma VL of 50–399 HIV RNA copies/mL at 36 weeks,

pre-labour CS (PLCS) should be considered, taking into account the actual VL, the trajectory of the VL, length of time on treatment, adherence issues, obstetric factors and the woman’s views.     Where VL is ≥400 HIV RNA copies/mL at 36 weeks, PLCS is recommended.   7.2.2 In women in whom a vaginal delivery has been recommended and labour has commenced, obstetric management should follow the same guidelines as for the uninfected population. Grading: 1C 7.2.3 Vaginal birth after CS (VBAC) should be offered to women with a VL <50 copies/mL. Grading: 1D 7.2.4 Delivery by PLCS is recommended for women taking zidovudine monotherapy irrespective of plasma VL at the time of delivery (Grading: 1A) and for women with VL >400 HIV RNA copies/mL regardless of ART (see Recommendation 7.2.1) with the exception of elite controllers (see Section 5.5). Grading: 1D 7.2.5 Where see more the indication for PLCS is PMTCT, PLCS should be undertaken at between 38 and 39 weeks’ gestation. Grading: 1C 7.3.1 In all cases of term pre-labour spontaneous ROM, delivery should be expedited. Grading: 1C 7.3.2 If maternal HIV VL is <50

HIV RNA copies/mL immediate induction of labour is recommended, Demeclocycline with a low threshold for treatment of intrapartum pyrexia. Grading: 1C   For women with a last measured plasma VL of 50–999 HIV RNA copies/mL, immediate CS should be considered, taking into account the actual VL, the trajectory of VL, length of time on treatment, adherence issues, obstetric factors and the woman’s views. Grading: 1C 7.3.4 If maternal HIV VL is ≥1000 RNA copies/mL plasma immediate CS is recommended. Grading: 1C 7.3.5 The management of prolonged premature ROMs (PPROM) at ≥34 weeks is the same as term ROM except women who are 34–37 weeks’ gestation will require group B streptococcus prophylaxis in line with national guidelines. Grading: 1C

7.3.6 When PPROM occurs at <34 weeks. Grading: 1C   Intramuscular steroids should be administered in accordance with national guidelines     Virological control should be optimized     There should be multidisciplinary discussion about the timing and mode of delivery 7.4.1 Intrapartum intravenous zidovudine infusion is recommended in the following circumstances:     For women with a VL >10 000 HIV RNA copies/mL plasma who present in labour, or with ROMs or who are admitted for planned CS Grading: 1C   For untreated women presenting in labour or with ROMs in whom the current VL is not known. Grading: 1C   In women on zidovudine monotherapy undergoing a PLCS intravenous zidovudine can be considered. Continued oral dosing is a reasonable alternative. Grading: 1B 8.1.