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1.
Sci Rep ; 13(1): 12477, 2023 08 31.
Article in English | MEDLINE | ID: mdl-37652925

ABSTRACT

Ancient Egyptian mummification was practiced for nearly 4000 years as a key feature of some of the most complex mortuary practices documented in the archaeological record. Embalming, the preservation of the body and organs of the deceased for the afterlife, was a central component of the Egyptian mummification process. Here, we combine GC-MS, HT-GC-MS, and LC-MS/MS analyses to examine mummification balms excavated more than a century ago by Howard Carter from Tomb KV42 in the Valley of the Kings. Balm residues were scraped from now empty canopic jars that once contained the mummified organs of the noble lady Senetnay, dating to the 18th dynasty, ca. 1450 BCE. Our analysis revealed balms consisting of beeswax, plant oil, fats, bitumen, Pinaceae resins, a balsamic substance, and dammar or Pistacia tree resin. These are the richest, most complex balms yet identified for this early time period and they shed light on balm ingredients for which there is limited information in Egyptian textual sources. They highlight both the exceptional status of Senetnay and the myriad trade connections of the Egyptians in the 2nd millennium BCE. They further illustrate the excellent preservation possible even for organic remains long removed from their original archaeological context.


Subject(s)
Environment , Tandem Mass Spectrometry , Humans , Chromatography, Liquid , Egypt , Archaeology
2.
Ann Pharm Fr ; 79(2): 194-206, 2021 Mar.
Article in English | MEDLINE | ID: mdl-33091398

ABSTRACT

A topical solution comprising of Minoxidil (MXL) and Finasteride (FNS) for alopecia is formulated in the present work, which essentially contains a lipid-Lauroglycol FCC as a penetration enhancer. The objective of the proposed work was to develop a rapid, simple, and robust reverse phase high performance liquid chromatographic (RP-HPLC) method to determine MXL and FNS in the said formulation. Herein, the chromatographic conditions were optimized based on the theoretical principles of separation and physicochemical properties such as pKa and log P of both the Active Pharmaceutical Ingredients (APIs). The separation was accomplished on an Inertsil® ODS-3 C18 column (150mm×4.6mm; 5µm of particle size) at 25°C by using a mobile phase composed of 70:30 v/v ratio of Methanol and Milli-Q water along with 0.5% Triethylamine at pH 6.4 adjusted with Ortho Phosphoric Acid. Drug peaks showed a good resolution at 210nm. The retention times for MXL and FNS were found to be 2.40min and 6.39min, respectively. The developed method was found to be linear (R2≥0.998) in a concentration range of 5-100µg/mL for both the drugs. The method was validated according to the ICH guidelines Q2 (R1). The ability of the method to differentiate between the types formulations was demonstrated by the in vitro diffusion data performed using a highly sophisticated Strat-M® membrane. The cumulative amount of drug released (MXL and FNS) at the end of 24hours was maximum for the topical formulation containing lipids prepared using isopropyl alcohol and propylene glycol as the base.


Subject(s)
Finasteride , Minoxidil , Chromatography, High Pressure Liquid , Indicators and Reagents , Lipids
3.
Afr. J. Clin. Exp. Microbiol ; 20(3): 209-220, 2019. ilus
Article in English | AIM (Africa) | ID: biblio-1256083

ABSTRACT

Background:Microbial metabolites are of great importance to the pharmaceutical industries. There is an urgent need of novel microbial metabolites in the present scenario to combat antimicrobial resistance. Selection and screening of potent microbial strains for production of antimicrobial metabolites as well as optimization of their culture conditions is of utmost importance in drug discovery. Therefore, the study was carried out to evaluate the effect of nutritional and cultural conditions on the production of bioactive metabolites by a rare tea garden actinobacterial strain Amycolatopsis sp. ST-28. Materials and methods:Submerged fermentation of the actinobacterial isolate was carried out on different culture media and different culture conditions such as carbon and nitrogen sources, inoculum volume, pH, fermentation period and agitation speed. The culture filtrate was assayed againstStaphylococcus aureus.Agar well diffusion method was employed to determine the maximum diameter of zone of inhibition (mm). The dried mycelial weight (mg) in a fixed volume of culture media was used for the determination of the total biomass produced.Results:Maximum bioactive metabolite and biomass production was observed when submerged fermentation was carried out with mannose and peptone respectively as a sole carbon and nitrogen source. Maintaining other environmental parameters viz. inoculum 11% (v/v), pH of 6.5, temperature of 32ºC and incubation period of 11 days at 150 rpm were found optimum for maximum antimicrobial activity. Conclusion:This study demonstrated optimized cultural conditions for improved production of antimicrobial compound by Amycolatopsis sp. ST-28


Subject(s)
Anti-Infective Agents , Antimetabolites
4.
J Appl Microbiol ; 121(4): 973-87, 2016 Oct.
Article in English | MEDLINE | ID: mdl-27406903

ABSTRACT

AIMS: The aim of this study was to isolate and characterize the bioactive compound of Micromonospora auratinigra, HK-10 and its antibacterial inhibitory mechanism. METHODS AND RESULTS: An oily bioactive compound was extracted from HK-10 (GenBank accession no. JN381554) and found to have promising antibacterial activity. The compound was characterized as 2-methylheptylisonicotinate (1) by (1) H, (13) C NMR and mass spectroscopy. Minimum inhibitory concentration (MIC) of this molecule was tested by micro broth dilution method and was found to be 70, 40, 80, 60, 60 and 50 µg for Staphylococcus aureus, Bacillus subtilis, Proteus vulgaris, Echerichia coli, Pseudomonas aeruginosa and Mycobacterium abscessus respectively. The effects of compound 1 were studied on bacterial membrane structure using scanning electron microscopy. The results indicated a membrane-disrupting mechanism, resulting in the dysfunction of the cytoplasmic membrane structure and cell death of the pathogenic bacterial strains. Kinetics of growth of the test organisms was also analysed and indicated 2-methylheptylisonicotinate 1 as a bactericidal agent. Furthermore, we have studied the binding affinity of 1 towards different membrane proteins of pathogenic bacteria by in silico analysis. CONCLUSIONS: 2-methylheptylisonicotinate was isolated from M. auratinigra, a rare actinobacterial strain possessing antibacterial activity through a membrane-disrupting mechanism, and has MICs similar to standard antibiotic neomycin sulphate. It is the first report about a strain of M. auratinigra, isolated from Indo-Burma biodiversity hotspot of North-east India with new antimicrobial activities. In silico studies have also supported these results performed on various membrane targets of pathogenic bacteria. SIGNIFICANCE AND IMPACT OF THE STUDY: The antibacterial potential of M. auratinigra is reported for the first time. The results indicate the possible use of 2-methylheptylisonicotinate as a source of antibacterial agent against dreaded human pathogens.


Subject(s)
Anti-Bacterial Agents/isolation & purification , Anti-Bacterial Agents/pharmacology , Bacteria/drug effects , Isonicotinic Acids/isolation & purification , Isonicotinic Acids/pharmacology , Micromonospora/chemistry , Soil Microbiology , Bacteria/classification , Humans , India , Kinetics , Microbial Sensitivity Tests , Micromonospora/classification , Micromonospora/ultrastructure
5.
Kathmandu Univ Med J (KUMJ) ; 14(54): 144-147, 2016.
Article in English | MEDLINE | ID: mdl-28166071

ABSTRACT

Background Gall bladder volume can have clinical and therapeutic implications and possibly affect certain pathophysiological mechanisms of many diseases affecting the gallbladder including gall stones. Objective The objective of the study was to establish baseline indices of gallbladder volume for the Sikkimese population and determine its correlation with age, sex and Body Mass Index. Method A prospective epidemiologic study on selected 100 patients (equal male to female ratio) over the age of 36 years, undergoing ultrasound scan of abdomen, was undertaken. Age, Sex, Body Mass Index and gall bladder volume for each subject were collected and analysed statistically. Spearman's correlation test was performed to look for significant variables. Result The overall mean gallbladder volume in the present study was 15.47±7.9 ml with 17.2±8.9 ml and 13.74±6.4 ml being average volumes in males and females respectively, which gives the baseline indices for the Sikkimese population. Gall bladder volume was strikingly increased in obese subjects. There was a positive correlation between gall bladder volume and age (r=0.114), gender (r=0.182) and BMI (r= 0.175) but the strength of correlation was weak and not statistically significant (p <0.001). Conclusion Ultrasonography is an easy and effective method for evaluation of gall bladder volume. Sikkimese males have a larger fasting gall bladder volume which is directly correlated with higher body mass index. Fasting gall bladder volume has a weak correlation with advancing age.


Subject(s)
Gallbladder/diagnostic imaging , Gallbladder/physiopathology , Adult , Body Mass Index , Cholelithiasis/physiopathology , Cross-Over Studies , Female , Gallbladder Emptying , Humans , Male , Middle Aged , Obesity/epidemiology , Prospective Studies
6.
J Environ Biol ; 35(4): 721-5, 2014 Jul.
Article in English | MEDLINE | ID: mdl-25004759

ABSTRACT

Cellulose decomposing microorganisms (CDMs) are important for efficient bioconversion of plant biomasses. To this end, we isolated seven fungal isolates (Aspergillus wentii, Fusarium solani, Mucor sp., Penicillum sp., Trichoderma harzaianum, Trichoderma sp.1 and Trichoderma sp.2) and three bacterial isolates (bacterial isolate I, II and III) from partially decomposed farm yard manure, rice straw and vermicompost, and evaluated them for decomposition of rice straw (Oryza sativa), Ipomoea camea and Eichhornia crassipes biomass. CDMs inoculation, in general, reduced the composting period by 14-28 days in rice straw, 14-34 days in Eichhornia and 10-28 days in Ipomoea biomass over control. Of the 10 CDMs tested, Mucor sp. was found to be the most effective as Mucor-inoculated biomass required minimum time, i.e. 84, 68 and 80 days respectively for composting of rice straw, Eichhornia and Ipomoea biomass as against 112, 102 and 108 days required under their respective control. CDMs inoculation also narrowed down the C:N ratio of the composts which ranged from 19.1-22.7, 12.9-14.7 and 10.5-13.1 in rice straw, Eichhornia and Ipomoea biomass respectively as against 24.1, 17.1 and 16.2 in the corresponding control treatments. Aspergillus wentii, Fusarium solani, Mucor sp., and Penicillum sp. were found most effective (statistically at par) in reducing C:N ratio and causing maximum loss of carbon and dry matter in composted materials. These benefits of CDMs inoculation were also accompanied by significant increase in NPK contents in the composted materials.


Subject(s)
Agriculture/methods , Bacteria/metabolism , Cellulose/metabolism , Eichhornia/metabolism , Fungi/metabolism , Ipomoea/metabolism , Oryza/metabolism , Biodegradation, Environmental , Biomass , India
7.
World J Microbiol Biotechnol ; 30(2): 519-28, 2014 Feb.
Article in English | MEDLINE | ID: mdl-23990071

ABSTRACT

Soil bacterial communities, which contain the highest level of prokaryotic diversity of any natural environment, are important for ecosystem functioning. A culture-independent metagenomic approach was employed in the present investigation to characterize the diversity of soil bacterial community composition in five geochemically and hydrologically different surface and subsurface soil habitats of Brahmaputra valley, Assam, North-East India, an Indo-Burma mega-biodiversity hotspot. The diversity of soil bacterial community was determined through sequence analysis of 16S-23S intergenic spacer regions (ISR). Polymerase chain reaction (PCR) universal primers, 1406F (5'-TGYACACACCGCCCGT-3') and 155r (5'-GGGTTBCATTCRG-3') were used for amplification of 16S-23S ribosomal DNA intergenic spacers of bacteria. Amplification resulted in an intense array of PCR products approximately ranging in size from 200 to 900 bp. Clear banding patterns were observed in analysed samples using the primer set in combination. A clear change in microbial ISR profile was observed on visual analysis of gel electrophoresis profiles. Fast alignment database searches of PCR amplicons of 16S-23S ISR sequence data revealed that the isolated sequences resembled five major phylogenetic groups of bacteria, namely α-, ß- and γ-subdivisions of Proteobacteria, Acidobacterium and Comamonadaceae.


Subject(s)
Biota , Soil Microbiology , Cluster Analysis , DNA, Bacterial/chemistry , DNA, Bacterial/genetics , DNA, Ribosomal Spacer/chemistry , DNA, Ribosomal Spacer/genetics , India , Phylogeny , Sequence Analysis, DNA
8.
World J Microbiol Biotechnol ; 28(4): 1327-50, 2012 Apr.
Article in English | MEDLINE | ID: mdl-22805914

ABSTRACT

Plant growth-promoting rhizobacteria (PGPR) are the rhizosphere bacteria that can enhance plant growth by a wide variety of mechanisms like phosphate solubilization, siderophore production, biological nitrogen fixation, rhizosphere engineering, production of 1-Aminocyclopropane-1-carboxylate deaminase (ACC), quorum sensing (QS) signal interference and inhibition of biofilm formation, phytohormone production, exhibiting antifungal activity, production of volatile organic compounds (VOCs), induction of systemic resistance, promoting beneficial plant-microbe symbioses, interference with pathogen toxin production etc. The potentiality of PGPR in agriculture is steadily increased as it offers an attractive way to replace the use of chemical fertilizers, pesticides and other supplements. Growth promoting substances are likely to be produced in large quantities by these rhizosphere microorganisms that influence indirectly on the overall morphology of the plants. Recent progress in our understanding on the diversity of PGPR in the rhizosphere along with their colonization ability and mechanism of action should facilitate their application as a reliable component in the management of sustainable agricultural system. The progress to date in using the rhizosphere bacteria in a variety of applications related to agricultural improvement along with their mechanism of action with special reference to plant growth-promoting traits are summarized and discussed in this review.


Subject(s)
Agriculture/methods , Bacteria/metabolism , Plant Development , Soil Microbiology
9.
Indian J Microbiol ; 52(4): 624-9, 2012 Dec.
Article in English | MEDLINE | ID: mdl-24293721

ABSTRACT

Piper longum L. (Piperaceae) commonly known as "long pepper" is a well known medicinal plant in ayurveda. Different parts of this plant, such as root, seed, fruit, whole plant etc. are used traditionally in various ailments. Here we have investigated the antidermatophytic activity of sequentially extracted petroleum ether, chloroform, methanol and water extracts from P. longum leaf against Trichophyton mentagrophytes, T. rubrum, T. tonsurans, Microsporum fulvum and M. gypseum. Better activity of chloroform and methanol extracts was observed. The chloroform extract was selected for further study and the MIC value was recorded as 5.0 mg ml(-1) against the test organisms. In the chloroform extract, tannins and phenolic compounds were detected. Further activity-guided fractionation of chloroform extract by silica gel column chromatography yielded nine major fractions. Among these, fraction-1, 4, 5 and 7 showed higher antidermatophytic activity. Fraction-4 on further purification by repeated column chromatography yielded a potential antidermatophytic fraction showing MIC value of 0.625 mg ml(-1) against T. mentagrophytes and T. rubrum as determined by broth microdilution method. The major compounds were identified as 1,2-benzenedicarboxylic acid, bis(2-ethylhexyl) ester (C24H38O4] (41.45 %), 2,2-dimethoxybutane (C6H14O2] (13.6 %) and ß-myrcene (C10H16) (6.75 %) based on GC-MS data.

10.
Nepal Med Coll J ; 14(2): 84-7, 2012 Jun.
Article in English | MEDLINE | ID: mdl-23671952

ABSTRACT

There is widespread prevalence of vitamin D deficiency from new-born to infancy, childhood and adult male and female. Despite the numerous reports of the association of vitamin D with spectrum of development, disease treatment and health maintenance, vitamin D deficiency is common. There is limited information of the vitamin D status in Nepalese people. Based on the information in relation to importance of Vitamin D, we proposed to see the level of vitamin D among the care seeker individuals attended in this Health Home Care Centre, Nepal. Within three months interval (March to May 2012), whole blood test was done by 148 individuals. Among them vitamin D3 test was recommended for 50 individuals done by doctor on the basis of relevant health problems in relation to vitamin D deficiency. Analysis was done with SPSS package 17 version to see the relation between Vitamin D deficiency and other health related tests. The study found significant association between vitamin D deficiency with calcium level and hemoglobin level. There are presences of studies with evidences regarding relation of vitamin D with different health outcomes in different parts of the world. The widespread deficiency of vitamin D merits consideration of widespread policies including increasing the awareness among the public and health care professionals. In addition the study results highlight the need for additional high quality studies in Nepal in order to prevent the impacts of vitamin D deficiency and also to plan for prevention of vitamin D deficiency.


Subject(s)
Cholecalciferol/blood , Vitamin D Deficiency/blood , Adolescent , Adult , Age Factors , Aged , Aged, 80 and over , Calcium/blood , Female , Hemoglobins/metabolism , Humans , Male , Middle Aged , Nepal , Uric Acid/blood , Vitamin D Deficiency/diagnosis , Young Adult
11.
Indian J Microbiol ; 50(Suppl 1): 74-81, 2010 Oct.
Article in English | MEDLINE | ID: mdl-22815576

ABSTRACT

Fungal endophytes were isolated from inner bark of Taxus baccata L., an important source of potent anticancer drug taxol. Bark samples were collected from two locations of Arunachal Pradesh, India, part of the Indo-Burma mega biodiversity hotspot, during two seasons i.e. monsoon and winter. Altogether 77 fungal strains representing 18 genera were isolated from T. baccata bark during the present investigation. The colonizing frequency was recorded as 38.5% and the fungal community comprised of 78% of Hyphomycetes, 5.2% of Coelomycetes, 2.6% of Zygomycetes and Ascomycetes and 9.1% of sterile mycelia. Most common and frequently isolated genera were Fusarium, Penicillium and Aspergillus. Simpson and Shannon diversity indices indicated higher species diversity during monsoon than during winter seasons irrespective of the locations. The two locations harbored 5 to 37 endophyte species and the similarity index was low during winter and high during monsoon. Ethyl acetate extract of fermentation cultures of these fungi were tested for their antimicrobial activity against a panel of human pathogenic Gram-positive and Gram-negative bacteria and fungi. Fifteen fungal isolates out of the isolated strains displayed antimicrobial activity. An endophytic fungus, identified as Fusarium sp. displayed significant antimicrobial activity against all the test pathogens.

12.
Acta Neurochir (Wien) ; 149(4): 341-6, 2007.
Article in English | MEDLINE | ID: mdl-17342378

ABSTRACT

OBJECTIVE: Various approaches including endoscopy have been used for the treatment of intraventricular and cisternal NCC. We present our technique of Neuro-endoscopic management of intraventricular NCC. METHODS: Twenty-one cases, 13 females and 8 males (age range 12-50 years; mean, 25.7 years), of intraventricular NCC [lateral (n = 6), third (n = 6), fourth (n = 10) ventricles including a patient with both lateral and third ventricular cysts] producing obstructive hydrocephalus formed the group of study. Gaab Universal Endoscope System along with 4 mm 0 degrees and 30 degrees rigid telescopes were used through a frontal burr-hole for removal of intraventricular including intra-fourth ventricular (n = 10) NCC. Endoscopic third ventriculostomy (ETV) was done for internal cerebrospinal fluid (CSF) diversion. Average follow up was 18 months. RESULTS: Complete (n = 18) or partial (n = 2) removal of NCC was done in 20 patients, while a cyst located at foramen of Monro slipped and migrated to occipital or temporal horn in 1 patient. Thirty-degree 4-mm rigid telescope provided excellent image quality with ability to address even intra-fourth ventricular NCC through the dilated aqueduct using a curved tip catheter. No patient required further surgery for their hydrocephalus. There was no operative complication and post-operative ventriculitis was not seen in any case despite partial removal of NCC. CONCLUSION: Neuro-endoscopic surgery is an effective treatment modality for patients with intraventricular NCC. It effectively restores CSF flow and is capable of removing cysts completely or partially from accessible locations causing mass effect. Partial removal or rupture of the cyst does not affect the clinical outcome of the patients.


Subject(s)
Endoscopy/methods , Lateral Ventricles/surgery , Neurocysticercosis/surgery , Ventriculostomy/methods , Adolescent , Adult , Brain/parasitology , Brain/pathology , Brain/surgery , Cerebral Ventricles/pathology , Cerebral Ventricles/physiopathology , Cerebral Ventricles/surgery , Cerebrospinal Fluid/physiology , Child , Female , Fourth Ventricle/pathology , Fourth Ventricle/physiopathology , Fourth Ventricle/surgery , Humans , Hydrocephalus/etiology , Hydrocephalus/physiopathology , Hydrocephalus/prevention & control , Lateral Ventricles/pathology , Lateral Ventricles/physiopathology , Male , Middle Aged , Neurocysticercosis/pathology , Neurocysticercosis/physiopathology , Third Ventricle/pathology , Third Ventricle/physiopathology , Third Ventricle/surgery , Treatment Outcome , Ventriculostomy/instrumentation
13.
Kathmandu Univ Med J (KUMJ) ; 5(4): 468-74, 2007.
Article in English | MEDLINE | ID: mdl-18604077

ABSTRACT

OBJECTIVE: To study the clinical profile, the spectrum of functional abnormalities, prognostic factors and outcome of children with haemolytic uremic syndrome (HUS). MATERIALS AND METHODS: This is a prospective, descriptive, single centre, cohort study, conducted on 42 children during the period of January 2004 to January 2005. RESULTS: The maximum numbers of cases were below 24 months of age with mean age of 26.6 months and male: female ratio of 2.8:1. Most of the cases (79%) occurred in the warmer months (April-September). The common clinical presentations were bloody diarrhoea, pallor, oliguria & anuria, fever, vomiting, abdominal distension and pain, involvement of central nervous system, chest and cardiovascular system and bleeding manifestations. The common haematological abnormalities were leucocytosis, thrombocytopenia, anaemia and features of haemolysis in the peripheral blood. Electrolyte abnormalities observed were in the form of hyponatremia, hypokalemia and hyperkalemia. Arterial blood gas analysis showed metabolic acidosis in 64% cases, where the estimations were done. The mean blood urea and serum creatinine levels were 113.7 mg/dL and 2.5 mg/dL, respectively. Stool examination showed blood in all cases. Urine examination showed microscopic haematuria and significant proteinuria in 74% and 38% cases, respectively. E. coli and Shigella were isolated in stool in three cases each and one case showed mixed growth of E. coli and Salmonella. The mortality rate was 21%. Significantly higher mortality was observed in females, patients presenting with complete anuria, leucocytosis, hyperkalemia and systemic involvement like central nervous system, cardio vascular system and chest. CONCLUSIONS: Female sex, complete anuria, leucocytosis, extra renal involvement and hyperkalemia were associated with poor outcome.


Subject(s)
Hemolytic-Uremic Syndrome/epidemiology , Anti-Bacterial Agents/therapeutic use , Child , Female , Hemolytic-Uremic Syndrome/diagnosis , Hemolytic-Uremic Syndrome/therapy , Humans , Male , Nepal/epidemiology , Prognosis , Risk Factors
14.
Indian J Microbiol ; 47(4): 317-22, 2007 Dec.
Article in English | MEDLINE | ID: mdl-23100684

ABSTRACT

A bacterium identified as Pseudomonas fluorescence was isolated from Taxus baccata rhizosphere. Ethyl acetate extract from its culture filtrate yielded an active antimicrobial compound that was purified by TLC. The active metabolites were resolved by column chromatography on silica gel (60-120 mesh). The compound was further characterized on the basis of spectral data (UV, IR and (1)HNMR), which indicated the presence of an aromatic ring and phenolic functionality. The compound showed significant antimicrobial activity against two-gram positive bacteria (B. subtilis and S. aureus), four-gram negative bacteria (E. coli, K. pneumoniae, S. flexneri and P. aeruginosa), and one pathogenic fungus (Candida albicans). The minimum inhibitory concentration (MIC) of the compound ranged between 75µg to 250 µg/ml.

15.
J Neurol Neurosurg Psychiatry ; 75(3): 448-52, 2004 Mar.
Article in English | MEDLINE | ID: mdl-14966163

ABSTRACT

OBJECTIVE: Spinocerebellar ataxia type 2 (SCA2) has been reported as the commonest dominant hereditary ataxia in India. However, India is an ethnically and religiously diverse population. Previous studies have not clearly indicated exact ethnic and religious origins, and must therefore be interpreted with caution. The purpose of this study was to determine the prevalence of different SCA mutations in a relatively homogeneous population from eastern India. METHODS: We identified 28 families with autosomal dominant cerebellar ataxia from eastern India. Each underwent full clinical evaluation and were analysed for the presence of SCA1, SCA2, SCA3, SCA6, SCA7, SCA8, SCA12, and SCA17 mutations. In addition, haplotype analysis was carried out in seven of the 16 families with SCA2. RESULTS: Seven patients from four (14%) families were positive for an expansion in SCA1 and 26 patients from 16 (57%) families were positive for an expansion in SCA2. No mutations were detected in the remaining eight families (29%). Most of the SCA1 and SCA2 families were Hindu from the state of Bihar. Five out of 26 SCA2 patients in this study did not have slow saccades. In addition, four of seven SCA1 patients had slow saccades. We found an association between the SCA2 CAG repeat expansion and the 285 base pair (bp) allele of microsatellite marker D12S1672, and also data supportive of the association between the expansion and the 225 bp allele of D12S1333, which has been previously described. CONCLUSIONS: We conclude that (1) although slow ocular saccades are highly suggestive of SCA2, that they are not universal, nor are they exclusive to this disorder and (2) SCA2 is likely to be the commonest dominant ataxia in eastern India, with further evidence for a founder effect.


Subject(s)
DNA Mutational Analysis , Genetics, Population , Proteins/genetics , Spinocerebellar Ataxias/genetics , Adolescent , Adult , Age of Onset , Ataxins , Child , Female , Genotype , Haplotypes , Humans , India , Male , Nerve Tissue Proteins , Pedigree , Prevalence , Saccades
16.
J Assoc Physicians India ; 49: 881-4, 2001 Sep.
Article in English | MEDLINE | ID: mdl-11837754

ABSTRACT

INTRODUCTION: Wilson's disease is an inherited autosomal recessive (AR) disorder of copper metabolism transmitted by a mutant gene on chromosome 13q14-21 and results in abnormal accumulation of copper giving rise to protean manifestations. AIM: The aim is to study the clinical features, biochemical and radiological abnormalities of this disorder in Eastern India and the effect of treatment. RESULTS: Forty nine (n = 49) cases were studied over a period of 10 years. Majority of patients were male with mean age of onset being 11.13 years. They commonly presented with dysarthria, dystonia or drooling. The clinical features were dystonia (96%), silly smile (92%), dysarthria (80%), cognitive decline (71%), tremors (47%), bradykinesia (45%), etc. Family history suggested an autosomal recessive pattern. Sibling screening revealed that 4/8 (50%) were presymptomatic. All but one had presence of Keyser Fleischer (KF) ring in their cornea. Serum copper was reduced in 77% while ceruloplasmin was less in 94% of cases. The commonest abnormality seen in CT/MRI were in basal ganglia (74%) followed by white matter changes (59%) and brain stem changes (20.5%). The response to treatment was not as good and there was an initial deterioration in 50% of cases. Only five patients could go back to their school. CONCLUSION: Wilson's disease have protean manifestations. All children with slowly progressive extrapyramidal syndrome should be investigated for it. Screening of all asymptomatic siblings for Wilson's disease must be carried out. Early institution of proper treatment and life long continuation is indicated in all. In the present series, an earlier age of onset of neurological signs and symptoms were seen; there was initial deterioration in 50% of cases and the response to treatment was not as good.


Subject(s)
Hepatolenticular Degeneration/diagnosis , Hepatolenticular Degeneration/epidemiology , Adolescent , Adult , Age Distribution , Age of Onset , Child , Female , Hepatolenticular Degeneration/drug therapy , Humans , Incidence , India/epidemiology , Male , Penicillamine/therapeutic use , Prognosis , Retrospective Studies , Risk Factors , Severity of Illness Index , Sex Distribution
17.
Eur J Hum Genet ; 8(9): 678-82, 2000 Sep.
Article in English | MEDLINE | ID: mdl-10980573

ABSTRACT

We have analysed the distribution of CAG and adjacent polymorphic CCG repeats in the Huntingtin gene in 28 clinically diagnosed unrelated Huntington's disease (HD) patients and in normal individuals belonging to different ethnic groups of India. The range of expanded CAG repeats in HD patients varied from 41 to 56 repeats, whereas in normal individuals this number varied between 11 and 31 repeats. We identified six CCG alleles from a total of 380 normal chromosomes that were pooled across different ethnic populations of India. There were two predominant alleles: (CCG)7 (72.6%) and (CCG)10 (20%). We report here for the first time one four-repeat CCG allele which has not been found in any population so far. We found 30 haplotypes (two loci CAG-CCG) for 380 normal chromosomes. In the present study, no statistically significant preponderance of expanded HD alleles was found on either (CCG)7 or (CCG)10 backgrounds. Our studies suggest that the overall prevalence of HD in Indian populations may not be as high as in Western populations. Further studies are necessary to identify the origin of HD mutation in these populations.


Subject(s)
Huntington Disease/genetics , Nerve Tissue Proteins/genetics , Nuclear Proteins/genetics , Trinucleotide Repeat Expansion/genetics , Adolescent , Adult , Aged , Alleles , Ethnicity/genetics , Ethnicity/statistics & numerical data , Female , Haplotypes , Humans , Huntingtin Protein , Huntington Disease/blood , Huntington Disease/epidemiology , Huntington Disease/ethnology , India/epidemiology , India/ethnology , Male , Middle Aged , Nerve Tissue Proteins/blood , Nuclear Proteins/blood , Polymorphism, Genetic/genetics , Sequence Analysis, DNA
18.
Ann Trop Med Parasitol ; 91(6): 611-6, 1997 Sep.
Article in English | MEDLINE | ID: mdl-9425363

ABSTRACT

Parasitologically confirmed cases of post-kala-azar dermal leishmaniasis (PKDL) were treated by infusion with amphotericin B deoxycholate (ABD; 1 mg/kg.day on days 1-20, 21-40 and 61-80) or by intramuscular injection with sodium antimony gluconate (SAG; 20-day courses at 20 mg/kg day, with 20-day, drug-free intervals). Of the 11 patients given ABD, all were cured with the three courses, none relapsed in 12 months of follow-up, all developed mild adverse effects (shivering and fever) because of the infusion, five lost their appetites, and three showed increases in their serum creatinine concentrations (although none exceeded 'normal' limits). In contrast, only seven (63%) of the 11 patients given SAG were considered treatment successes (improvement in lesions by the end of the third course) and these took six courses (two cases), nine courses (four cases) or 10 courses (one case) to cure completely. Two of the patients given SAG developed arthralgia and two others developed non-specific ST changes in their electrocardiograms (ECG), although their ECG were normal between courses. The better cure rate with ABD was not statistically significant, probably because of the small sample size. However, ABD appears to be a superior to SAG in terms of the speed of response and cure, although it is more expensive and has some nephrotoxicity. As the effectiveness of SAG against PKDL is apparently declining over time and the cost of ABD is prohibitive in poor countries such as India, a safe, cheap and more effective drug for the treatment of PKDL is needed.


Subject(s)
Amphotericin B/therapeutic use , Antimony Sodium Gluconate/therapeutic use , Antiprotozoal Agents/therapeutic use , Leishmaniasis, Cutaneous/drug therapy , Leishmaniasis, Visceral/drug therapy , Adolescent , Adult , Child , Female , Follow-Up Studies , Humans , India , Leishmaniasis, Visceral/complications , Male , Middle Aged , Treatment Outcome
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