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Karen L Grogg Chandrashekar Padmalatha Kevin O Leslie 《Archives of pathology & laboratory medicine》2002,126(1):93-96
We report a bronchial carcinoid tumor with distinctive, cytoplasmic, rod-shaped crystalloid inclusions that were visible by light microscopy. These cytoplasmic structures were immunoreactive with antibodies against chromogranin A and synaptophysin in paraffin-embedded tissue. Ultrastructural studies showed them to be paracrystalline in nature and located within lysosomes. This case highlights an interesting, and potentially confusing, histologic manifestation in an otherwise typical bronchial carcinoid tumor. 相似文献
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Colombo Paolo Lee Ping I. Peppas Nikolaos A. Devi K. Padmalatha 《Pharmaceutical research》1990,7(4):431-432
Pharmaceutical Research - 相似文献
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Rao KL Babu KA Kanakavalli MK Padmalatha VV Deenadayal M Singh L 《Reproductive biomedicine online》2005,10(4):467-472
The prevalence of chromosomal abnormalities in azoospermic and oligoastheno-teratozoospermic infertile men of South Indian origin undergoing assisted reproductive technologies was evaluated. In addition, the study aimed to investigate new abnormal karyotypes involving autosomes in azoospermia and sex chromosomes in oligoastheno-teratozoospermic individuals that are supposed to be rare. Metaphase chromosomes of 744 infertile men, including 272 men with azoospermia and 472 men with oligoastheno-teratozoospermia (OAT), were analysed using Giemsa-trypsin-Giemsa banding and fluorescence in-situ hybridization (FISH) wherever necessary. Chromosomal abnormalities were observed in 59 (7.9%) individuals of the total studied population. Among these, 30 out of 272 (11.0%) azoospermic men and 29 out of 472 (6.1%) infertile men with OAT showed chromosomal abnormalities. A strong and statistically significant association (OR = 1.89; P = 0.0235) of chromosomal abnormalities and sex chromosome abnormalities (OR = 4.29; P = 0.001) with azoospermia when compared with OAT was observed. In addition, six autosomal abnormalities associated with azoospermia and two abnormalities involving Y chromosome, which include a novel karyotype (mos 46,XY/51,XYYYYYY) in OAT individuals, were detected. 相似文献
5.
Kumar KA Rao KL Vedula SV Kanakavalli MK Vaddamani PV Deendayal M Gupta N Chakravarthy BN Singh L 《Reproductive biomedicine online》2005,11(4):444-448
The present study was aimed at mutational screening of the gene coding for galactose-1-phosphate uridyltransferase in females with premature ovarian failure within an Indian population. A case-control-based study approach was used. It included females with premature ovarian failure (n = 108), primary amenorrhoea (n = 37) and secondary amenorrhoea (n = 9), and a control group of 136 women with a normal ovarian pattern. Gene sequencing analysis for the presence of mutations in the promoter and the coding regions of GALT has shown the absence of any mutation. A hexanucleotide deletion was found in the third intronic region of GALT in both cases and controls. These data support the hypothesis that there is no significant association between GALT mutations and ovarian failure, and hence the present authors conclude that there is no relationship between ovarian failure and GALT polymorphisms in Indian women. 相似文献
6.
C Padmalatha R C Harruff D Ganick G B Hafez 《Archives of pathology & laboratory medicine》1980,104(12):649-650
Gliomas of the CNS associated with tuberous sclerosis have been well documented; malignant degeneration to glioblastoma multiforme, however, is rare. We studied a 17-year-old boy with stigmata of tuberous sclerosis and a cerebral glioblastoma multiforme. The rarity of this occurrence suggests that neoplasms arising from hamartomas may behave differently than those CNS tumors that arise apparently de novo. 相似文献
7.
Alireza A. Shamshirsaz MD Samadh F. Ravangard DO Garry Turner MD Adam Borgida MD Mary Beth Janicki MD Winston A. Campbell MD Carolyn Zelop MD Amirhoushang A. Shamshirsaz MD Melissa Spiel DO Anne Marie Prabulos MD Deborah Feldman MD John Rodis MD Charles J. Ingardia MD Padmalatha Gurram MD Kisti Fuller MD Yu M. Fang MD Peter Benn PhD James F. X. Egan MD 《Journal of ultrasound in medicine》2013,32(9):1607-1613
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Devi Kanikanti Padmalatha Rao Kanikanti V. Ranga Baveja Srikrishan Fathi Marc Roth Marc 《Pharmaceutical research》1989,6(4):313-317
Zero-order release of oxprenolol hydrochloride was obtained by controlling the swelling and erosion of the matrix. This formulation involves only mixing of drug, hydroxypropylmethylcellulose (HPMC), and sodium carboxymethylcellulose (Na CMC) at the ratio of 1:0.4:1.6, respectively, and compressing the mixture directly into tablets. The in vitro release pattern from this optimized matrix tablet was reproducible. Accelerated stability studies revealed that the optimized formulation remains stable for an approximately 2-year shelf life. This sustained-release (SR) tablet was evaluated in dogs, and for comparison a conventional (CV) formulation was also given at the same dose level. Plasma oxprenolol levels were monitored by a sensitive and specific high-performance liquid chromatographic (HPLC) method. Significant differences in the pharmacokinetic parameters, i.e., lower C
max, higher values of t
max, MRT, AUC, and plasma concentration at 24 hr, and nearly constant plasma levels over 12 hr, indicated that the SR matrix tablet is superior to the CV rapid-releasing formulation. The in vitro release parameters and in vivo pharmacokinetics correlated well. 相似文献